源代码如下：
import java.applet.Applet;
import java.awt.Event;
import java.awt.Frame;
import java.awt.Label;
import java.awt.event.*;

public class StarterCombined extends Applet
{
private Label label;
public static void main(String args[])
{
StarterCombinedFrame app=new StarterCombinedFrame("Starter Application");
app.setSize(300,100);
app.show();
System.out.println("StarterCombinedFrame:main()");
}
public void init()
{
System.out.println("Applet:init()");
}
public void start()
{
Label label=new Label();
add(label);
System.out.println("Applet:strat()");
}
public void stop()
{
System.out.println("Applet:stop()");
}
public void destory()
{
System.out.println("Applet:destory()");
}

class StarterCombinedFrame extends Frame
{
StarterCombinedFrame(String frameTitle)
{
super(frameTitle);
StarterCombined applet=new StarterCombined();
applet.start();
add(applet,"Center");
addWindowListener(new windowAdapter()
{
public void windowClosing(WindowEvent event)
{
dispose();
System.exit(0);
}
});
}
}
}


错误消息如下：
D:jdk1.2test>javac StarterCombined.java
StarterCombined.java:12: No enclosing instance of class StarterCombined is in sc
ope; an explicit one must be provided when creating inner class StarterCombined.
 StarterCombinedFrame, as in "outer. new Inner()" or "outer. super()".
                StarterCombinedFrame app=new StarterCombinedFrame("Starter Appli
cation");
                                         ^
1 error

那位高手能指点一下呀，谢谢。

不好意思，应该是这样的：
public static void main(String args[])
    {
        StarterCombined myapplet=new StarterCombined(); 
        StarterCombinedFrame app=myapplet.new StarterCombinedFrame("Starter Application");
        app.setSize(300,100);
        app.show();
        System.out.println("StarterCombinedFrame:main()");
    }

import java.applet.Applet;
import java.awt.Event;
import java.awt.Frame;
import java.awt.Label;
import java.awt.event.*;

public class StarterCombined extends Applet
{
    private Label label;
    
    public static void main(String args[])
    {
        StarterCombinedFrame app=new StarterCombinedFrame("Starter Application");
        app.setSize(300,100);
        app.show();
        System.out.println("StarterCombinedFrame:main()");
    }
    public void init()
    {
        System.out.println("Applet:init()");
    }
    public void start()
    {
        Label label=new Label("sdf");
        add(label);
        System.out.println("Applet:strat()");
    }
    public void stop()
    {
        System.out.println("Applet:stop()");
    }
    public void destory()
    {
        System.out.println("Applet:destory()");
    }
    
        
}
        
class StarterCombinedFrame extends Frame
    {
        StarterCombinedFrame(String frameTitle)
        {
          super(frameTitle);
          StarterCombined applet=new StarterCombined();
          applet.start();
          add(applet,"Center");
          /*
          addWindowListener(new windowAdapter()
                    {
                        public void windowClosing(WindowEvent event)
                        {
                            dispose();
                            System.exit(0);
                        }
                    });
         */           
        }
}
 

public static void main(String args[])
    {
        StarterCombinedFrame app=new StarterCombinedFrame("Starter Application");
}

这一句有问题，starterCombinedFrame 是一个inner class,在它的outer实例没有被创建之前是不能new的

是Inner Class的问题，
应该先创建outer class的实例，
在创建Inner Class的实例。
可能应该是这样吧：StarterCombinedFrame app=new StarterCombined().getinstance().StarterCombinedFrame("Starter Appli");
具体怎么样我也记不太清了，反正应该是这个问题。你可已查查Jdk Doc